it may never be seen again in the history of civilization. climate changes are not imaginary, not theoretical, not based on computer models. it's right there in front of you. >> there is more at bill moyers.com. i'll see you there and i'll see moyers.com. i'll see you there and i'll see you here next time. -- captions by vitac -- www.vitac.com de nrns don't wait a week. to get more moyers visit bill moyers.com for exclusive blogs, essays and video features. this episode is available on dvd for $19.95. to order call or write to the address on your screen. funding is provided by carnegie corporation of new york celebrating 100 years of philanthropy and committed to doing real and permanent good in the world. the coalberg foundation. independent production fund with support from the partridge foundation. a john and poly guf charitable fund. the cle meant foundation. park foundation dedicated to heightening public awareness of public issues. the herb alpert foundation. the bernard and audrey rapoport foundation. the john d. and kathryn t. mcarthu